R₁ = R₂ = R₁ = Rm = The figure shows a direct current circuit. Assume that for the five external resistors we have R and R3 = R/2. What is the equivalence resistance from the point a to point d. (Note that you can assume that the internal resistance of the voltage source is zero.) r w -||^^^^ e R₁ Z b Rm a R3 R2

R₁ = R₂ = R₁ = Rm = The figure shows a direct current circuit. Assume that for the five external resistors we have R and R3 = R/2. What is the equivalence resistance from the point a to point d. (Note that you can assume that the internal resistance of the voltage source is zero.) r w -||^^^^ e R₁ Z b Rm a R3 R2

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 3CQ: Show that the power dissipated by the load resistor is maximum when the resistance of the load...

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In this chapter, most examples and problems involved direct current (DC). DC circuits have the current flowing in one direction, from positive to negative. When the current was changing, it was changed linearly from I=ImaxtoI=+Imax and the voltage changed linearly from V=Vmax to V=+Vmax where Vmax=ImaxR .Suppose a voltage source is placed in series with a resistor of R = 10 that supplied a current that alternated as a sine wave, for example, I(t)=(3.00A)sin(24.00st) . (a) What would a graph of the voltage drop across the resistor V(t) versus time look like? (b) What would a plot of V(t) versus I(t) for one period look like? (Hint: If you are not sure, try plotting V(t) versus I(t) using a spreadsheet.)
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